Ok. This isn't a fully new topic, but I didn't find the answer I'm looking for.
A mate attended to a tactical medicine course. They said to him that behind-armor blunt trauma (BABT) and/or backface deformation (BFD) could mean pneumothorax or broken ribs in case of high velocity projectiles. I did a Google search and I find few things but not real data. They talk about experiments with animals, but not data from humans in the real life.
Is there any data about cases in humans? Is there really a feasible chance to get a pneumothorax, broken ribs, hemorrhage, according to real cases? or, is that just anecdotical and no reason to worry about BABT or BFD when wearing body armor?
Thanks in advance for your comments.